Amber
Succinite (approximate formula C10H16O)
mineral
Category
Organic Mineraloid And Mineral
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Likely coal (possibly anthracite)
Coal, composed chiefly of carbon-rich organic matter; rank cannot be confirmed from the photograph
sedimentary
Fossiliferous limestone
Bioclastic carbonate rock; predominantly calcite (CaCO₃)
sedimentary
Fossilized bone fragment
Petrified vertebrate bone; mineralized hydroxyapatite replaced or infilled by silica/carbonates
fossil
Polished amber (likely copal or amber)
Fossilized tree resin; amber is predominantly polymerized diterpenoid resin, while copal is younger, incompletely polymerized resin
gemstone
Polished green moss agate cabochon
Moss agate: microcrystalline quartz (SiO₂) with included chlorite/actinolite or iron-manganese minerals
mineral
Amber
Fossilized Tree Resin
gemstone
Amber
Fossilized tree resin
gemstone
Amber
Succinite (fossilized tree resin)
mineral
Amber
Succinite (Resin)
mineral
Amber
Succinite (approximate formula C10H16O)
mineral
Amber
Succinite (C10H16O)
mineral
Amber
Succinite (approximate formula C10H16O)
mineral
Shark Tooth Fossil
Chondrichthyes (shark) tooth
fossil
Tufa Rock and Tumbled Gemstones
Calcareous Tufa (Calcium Carbonate, CaCO3)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz-veined Limestone
Sedimentary limestone with quartz/calcite veinlets
sedimentary
Amber
Succinite (fossilized tree resin)
fossil
Fossil Shark Tooth
Carcharocles (Otodus) sp. or similar fossilized Chondrichthyes tooth
sedimentary
Sand Tiger Shark Tooth
Carcharias taurus
fossil
Chert with Calcite Veins
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) intrusions
sedimentary
Unidentified Dark Mineral or Rock
Indeterminate (Likely Silicon Dioxide or Carbon-based)
mineral
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Amber
Succinite (Organic Gemstone)
mineral
Amber / Copal
Organic resin, C10H16O
mineral
Sandstone
Arenite
sedimentary
Limestone Concretion (Botryoidal/Calcareous Nodules)
Calcium Carbonate Concretion (CaCO3)
sedimentary
Amber
Succinates (Fossilized Tree Resin)
mineral
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
mineral
Amber
Succinite (Fossilized Resin)
gemstone
Dendritic jasper/chalcedony
Silica-rich microcrystalline quartz (SiO₂) with manganese-oxide dendrites
mineral
Amber
Succinite / Fossilized Resin (C10H16O)
fossil
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxides
mineral
Amber
Succinite
mineral
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
mineral
Amber
Succinite
mineral
Fossilized Shell Fragment / Mother of Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite biomineral
fossil
Shark Tooth Fossil
Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)
fossil
Fossil Shark Tooth
Lamniformes (order) - likely Cretalamna or Carcharias species
fossil
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Fossil Shark Tooth
Chondrichthyes (class)
fossil